A drawing that shows the side of the house that is facing a
certain direction is known as Elevation drawing. It may show the
length, height and width of the house. Elevation drawings are used
by Electricians to determine the heights of windows, doors,
porches, and other parts of the structure. While installing
electrical items its essential to have the information of elevation
drawing. For electrical items such as outside lighting fixtures and
outside receptacles it’s a must.

Interior elevation plans show the design and size of cabinets
and appliances located on or against the walls. For an electrician
an interior elevation drawing of the kitchen or bathroom can help
him to locate where the receptacles, switches, and the lighting
outlets can be located. This will make sure that when all the
things are installed, switches or receptacles are not covered up
and that lighting outlets are in the right place.